A mechanical transmission sprocket assembly

Abstract

The present invention relates to the technical field of transmission sprockets, and discloses a mechanical transmission sprocket assembly, which solves the problems of mechanical transmission sprocket assemblies currently on the market that serrations lack protection, are easily broken and worn after being hit by objects, have high surface temperatures during long-term operation, have poor heat dissipation effects, have short service cycles, and have adhesions on the surface of transmission chains that increase operating resistance and pressure, resulting in poor transmission effects. The mechanical transmission sprocket assembly comprises a transmission gear, a transmission gear, and a transmission chain, wherein the transmission gear is connected to the transmission gear through the transmission chain. The present invention has the advantages of being able to protect serrations, being not easily broken and worn after being hit by objects, being able to reduce surface temperatures, extending service cycles, automatically cleaning adhesions on the surface of the transmission chain, reducing operating resistance and pressure, having good transmission effects, being applicable to requirements of various installation sizes, having a large installation range, having good durability, being convenient to carry, and being able to determine the installation position, thereby improving installation accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission sprockets, and in particular relates to a mechanical transmission sprocket assembly. Background Art

[0002] The drive sprocket is also called the roller sprocket. The sprocket is divided into a driving sprocket and a driven sprocket. The driving sprocket is installed on the engine output shaft through a spline, and the driven sprocket is installed on the motorcycle drive wheel. The power is transmitted to the drive wheel through the chain. Generally, the driving sprocket is smaller than the driven sprocket, which can reduce speed and increase torque.

[0003] Performance characteristics of transmission sprockets: Material selection - both large and small sprockets are stamped from high-quality carbon structural steel; Processing and treatment technology - advanced milling technology is used to make the tooth profile more precise, and the entire sprocket undergoes tempering heat treatment, which greatly improves its comprehensive mechanical properties. The tooth hardness reaches above 68-72HRA, which significantly improves the wear resistance of the sprocket. The surface is sprayed and electroplated; Product series - economical and practical ordinary sprockets and high-quality sprockets with superior performance.

[0004] However, when the mechanical transmission sprocket assembly on the market is used, the serrations on the surface gear are completely exposed to the outside, which will cause breakage and wear when hit by objects, which will cause the mechanical transmission sprocket assembly to be unable to use normally. In addition, continuous rotation will increase the surface temperature of the mechanical transmission sprocket assembly, and the one-time use cycle is short. When the transmission chain surface is used, more substances will adhere to it as the use cycle increases. As the adhesion increases, the operating pressure and operating resistance of the transmission chain will be reduced, and the transmission effect will also be reduced accordingly. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a mechanical transmission sprocket group, which effectively solves the problems of lack of protection of the serrations on the mechanical transmission sprocket groups currently on the market, easy breakage and wear after impact by objects, high surface temperature during long-term operation, poor heat dissipation effect, short service life, adhesion on the surface of the transmission chain increasing the operating resistance and pressure, and poor transmission effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a mechanical transmission sprocket assembly, comprising a transmission gear, a transmission pinion, and a transmission chain, wherein the transmission gear is connected to the transmission pinion through the transmission chain, a plurality of merging blocks are fixed to the outside of the transmission gear or the transmission pinion, the surface of each merging block is affixed to an arc-shaped protective ring, the outside of each protective ring is threadedly connected to a screw, and the screw passes through one end of the protective ring and is threadedly connected to the surface of the merging block, the outside of each protective ring is bonded with a heat sink, and two scraping mechanisms are respectively installed on the outside of the transmission gear or the transmission pinion, and each of the two scraping mechanisms corresponds to the front and rear parts of the transmission chain respectively;

[0007] Each of the scraping mechanisms includes two corresponding movable holes opened on the outside of the transmission gear or the transmission pinion, and a support frame is movably installed on the inner wall of the two movable holes. The surface of the support frame is threadedly connected with a tightening bolt, and the tightening bolt passes through one end of the support frame and is threadedly connected with a shaped hole, and the shaped hole is opened on the surface of the transmission gear or the transmission pinion, and a scraper plate is fixed on the top of the support frame.

[0008] Preferably, a plurality of mounting grooves are provided on the surface of the transmission gearwheel and the transmission pinion, and a corresponding number of equidistant limit components are installed in the inner cavity of each mounting groove, and a replaceable assembly ring is installed on the inner wall of each limit component, and a corresponding number of screws as the limit components are installed on the inner wall of the assembly ring, and one end of each screw passes through the assembly ring and is threadedly connected to the surface of the limit component.

[0009] Preferably, the limit assembly includes a control rod threadedly connected to the inner wall of the transmission gear or the transmission pinion, a circular limit block is fixed to one end of the control rod, a retaining block is movably installed on the outside of the limit block, an arc-shaped shaping ring is fixed to the outside of the retaining block, two guide rods are fixed to the outside of the shaping ring, and one end of the outside of the two guide rods is movably sleeved on the inner wall of the transmission gear or the transmission pinion, and each of the guide rods is fixed with a blocking block at one end located in the inner cavity of the transmission gear or the transmission pinion.

[0010] Preferably, at least three sliding components are installed on the outside of the limiting block, and the inner cavity of the retaining block is provided with a sliding groove, and the inner wall of the sliding groove is slidably matched with the outside of the sliding component.

[0011] Preferably, the sliding assembly includes a retaining groove opened on the surface of the limit block, a retaining rod is fixed to the inner cavity of the retaining groove, a ball is movably installed in the middle of the retaining rod, and the surface of the ball matches the inner wall of the sliding groove for sliding.

[0012] Preferably, closing blocks are fixed on both sides of the inner cavity of the installation groove, a first assembly hole is provided on the surface of the closing block, a steering groove is provided on the inner side of the installation groove, a steering rod is fixed to the inner cavity of the steering groove, a steering tube is movably sleeved on the outside of the steering rod, a sealing plate is fixed to the outside of the steering tube, a second assembly hole is provided on the surface of the sealing plate, a sealing ring is bonded to the outer ring surface of the sealing plate, and the inner cavities of the first assembly hole and the second assembly hole are threadedly connected with an elastic rod.

[0013] Preferably, one side of the mounting groove is provided with scale lines, a bellows is fixed to the inner wall of the transmission gear or the transmission gear, and the other end of the bellows is fixed to the surface of the shaping ring.

[0014] Preferably, the front and back sides of the outer wall of the transmission gear or the transmission gear are provided with three or more groups of finger grooves which are arranged in a corresponding and equidistant manner, and the diameter of the finger grooves is more than 5 cm.

[0015] Preferably, a receiving groove is provided on the surface of the transmission gear or the transmission gear, and a reflective component is installed in the inner cavity of the receiving groove.

[0016] Preferably, the reflective assembly includes a locking rod fixed in the inner cavity of the storage slot, one end of the locking rod is movably sleeved with a movable tube, a movable groove is opened on the surface of the movable tube, the inner cavity of the movable groove is movably sleeved with a merging plate, and the surface of the merging plate is inlaid with lenses.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] During operation, the protective ring can shield the position of the serrations of the transmission gear or the transmission pinion, so as to prevent the serrations from being broken and worn due to impact from objects. The heat sink can improve the heat dissipation efficiency of the transmission gear or the transmission pinion, thereby extending the operation cycle of the transmission gear or the transmission pinion. When the scraping mechanism is subjected to the synchronous rotation of the transmission gear or the transmission pinion, it can clean the adhesion on the transmission chain, reduce the running resistance and pressure of the transmission chain, and improve the transmission efficiency.

[0019] Open the sealing plate, and rotate the limit assembly with the scale pattern to improve the precision, so as to change the installation size of the assembly ring. According to actual needs, multiple-size assembly rings can be installed, which improves the installation application range of the entire mechanical transmission sprocket set. In addition, the durability of the limit assembly is also improved by cooperating with the sealing plate and the bellows.

[0020] The user inserts his hand into the finger groove to effectively apply force to the transmission gear or the transmission pinion, thereby realizing convenient carrying of the transmission gear or the transmission pinion;

[0021] By using a movable tube in conjunction with a positioning rod, a movable slot, and a merging plate, the lens can be flexibly adjusted in angle, thereby refracting sunlight and then irradiating it on the transmission gear or the transmission pinion. By determining whether the light irradiates the transmission gear or the transmission pinion, it can be determined whether the installation position of the transmission gear or the transmission pinion is too offset, thereby improving the installation accuracy of the transmission gear or the transmission pinion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the installation slot of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the sliding assembly of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation structure of the elastic rod of the present invention;

[0027] Figure 5 Schematic diagram of the reflective assembly structure of the present invention;

[0028] In the figure: 1. Transmission gear; 2. Transmission pinion; 3. Transmission chain; 4. Limiting assembly; 41. Control rod; 42. Limiting block; 43. Retaining block; 44. Shaping ring; 45. Guide rod; 46. Stop block; 5. Assembly ring; 6. Screw; 7. Sliding groove; 8. Mounting groove; 9. Sliding assembly; 91. Retaining groove; 92. Retaining rod; 93. Ball; 10. Merging block; 11. Protective ring; 12. Screw; 13. Heat sink; 14. Scraping mechanism; 141. Movable hole; 14 2. Support frame; 143. Elastic bolt; 144. Molding hole; 145. Scraper plate; 15. Closing block; 16. First assembly hole; 17. Steering groove; 18. Steering rod; 19. Steering tube; 20. Sealing plate; 21. Second assembly hole; 22. Sealing ring; 23. Elastic rod; 24. Scale pattern; 25. Bellows; 26. Finger groove; 27. Storage slot; 28. Reflective component; 281. Positioning rod; 282. Movable tube; 283. Movable groove; 284. Merging plate; 285. Lens. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In this embodiment, Figure 1 、 24 is given, the present invention includes a transmission gear 1, a transmission pinion 2, and a transmission chain 3. The transmission gear 1 is connected to the transmission pinion 2 through the transmission chain 3. A plurality of merging blocks 10 are fixed to the outside of the transmission gear 1 or the transmission pinion 2. The outer wall of the merging block 10 is also an arc-shaped setting. The surface of each merging block 10 is fitted with an arc-shaped protective ring 11. The protective ring 11 can protect the serrated area on the transmission gear 1 or the transmission pinion 2 to avoid damage caused by contact and collision between the serrations and objects, thereby realizing serration protection for the transmission gear 1 or the transmission pinion 2. The protective ring 11 can be aligned with the arc surface of the merging block 10. The outer surface of each protective ring 11 is threadedly connected with a screw 12, and one end of the screw 12 passes through the protective ring 11 and is threadedly connected to the surface of the merging block 10. The screw 12 can be driven by a screwdriver to rotate clockwise or counterclockwise. When the screw 12 rotates clockwise, the protective ring 11 can be fixed on the merging block 10. When the screw 12 rotates counterclockwise, the protective ring 11 can be separated and disassembled from the merging block 10. The outer surface of the protective ring 11 is bonded with a heat sink 13. The heat sink 13 can accelerate the discharge of heat from the surface of the transmission large gear 1 or the transmission small gear 2 through the principle of heat conduction, thereby reducing the heat dissipation of the transmission large gear 1 or the transmission small gear 2. The surface temperature of the transmission pinion 2 increases the disposable cycle of the transmission gear 1 or the transmission pinion 2. Two scraping mechanisms 14 are respectively installed on the outside of the transmission gear 1 or the transmission pinion 2. Each of the two scraping mechanisms 14 corresponds to the front and rear parts of the transmission chain 3. The scraping mechanism 14 can remove impurities adhering to the transmission chain 3, thereby avoiding the situation where too much adhesion on the surface of the transmission chain 3 causes poor operating sensitivity. Each scraping mechanism 14 includes two corresponding movable holes 141 opened on the outside of the transmission gear 1 or the transmission pinion 2. The inner wall of the two movable holes 141 is movably installed with a support frame 142 to support The surface of the support frame 142 is threadedly connected with a tightening bolt 143. The tightening bolt 143 is manually rotated with a screwdriver. One end of the tightening bolt 143 passes through the support frame 142 and is threadedly connected to a shaped hole 144. The operation is the same as that of the screw 12. The tightening bolt 143 is rotated clockwise to enter the shaped hole 144 to fix the support frame 142. Otherwise, the position fixation is released. The shaped hole 144 is opened on the surface of the transmission gear 1 or the transmission pinion 2. A scraper plate 145 is fixed on the top of the support frame 142. The scraper plate 145 removes the adhesion on the surface of the transmission chain 3, reducing the operating pressure and resistance of the transmission chain 3 and achieving a good transmission effect.

[0031] Depend on Figure 1 、 2, 3, 4 are given, a plurality of mounting grooves 8 are provided on the surface of the transmission gear 1 and the transmission pinion 2, and a corresponding number of equidistant limit components 4 are installed in the inner cavity of each mounting groove 8, and the limit components 4 can rotate inside the mounting groove 8, and a replaceable assembly ring 5 is installed on the inner wall of each limit component 4, and a number of screws 6 corresponding to the limit components 4 are installed on the inner wall of the assembly ring 5. The screw 6 is manually operated to rotate clockwise or counterclockwise. The assembly ring 5 can be fixed by rotating the screw 6 clockwise, and the assembly ring 5 can be disassembled by rotating it counterclockwise. Assembly rings 5 ​​of different sizes can be replaced according to actual needs, thereby meeting different installation requirements, improving the applicability of the transmission gear 1 or the transmission pinion 2, and avoiding the situation where the traditional internal dimensions are fixed and cannot be adjusted. , and one end of each screw 6 passes through the assembly ring 5 and is threadedly connected to the surface of the limit component 4. The limit component 4 includes a control rod 41 threadedly connected to the inner wall of the transmission large gear 1 or the transmission small gear 2. The control rod 41 is manually rotated clockwise, and the control rod 41 extends and moves toward the inner cavity of the transmission large gear 1 or the transmission small gear 2. A circular limit block 42 is fixed to one end of the control rod 41. A retaining block 43 is movably installed on the outside of the limit block 42. The limit block 42 can drive the retaining block 43 to move synchronously. An arc-shaped shaping ring 44 is fixed to the outside of the retaining block 43, and the shaping ring 44 also moves with the retaining block 43. Two guide rods 45 are fixed to the outside of the shaping ring 44. When the shaping ring 44 moves, it is limited by the position of the two guide rods 45. In this way, the shaping ring 44 will not rotate when it moves, and one end of the outside of the two guide rods 45 is movably sleeved on the inner wall of the transmission large gear 1 or the transmission small gear 2. Each guide rod 45 is located at one end of the inner cavity of the transmission large gear 1 or the transmission small gear 2. A blocking block 46 is fixed. The blocking block 46 can prevent the guide rod 45 from falling off the transmission large gear 1 or the transmission small gear 2. At least three sliding components 9 are installed on the outside of the limit block 42. The inner cavity of the retaining block 43 is provided with a sliding groove 7. The inner wall of the sliding groove 7 is matched with the outer sliding of the sliding component 9. The sliding component 9 includes a retaining groove 91 provided on the surface of the limit block 42. The inner cavity of the retaining groove 91 is fixed with a retaining rod 92. The middle part of the retaining rod 92 is movably installed with a ball 93. When the limit block 42 rotates, the ball 93 The surface matches and slides with the inner wall of the sliding groove 7, and the ball 93 rotates on the inner wall of the sliding groove 7, ensuring the smooth rotation of the limit block 42. Closing blocks 15 are fixed on both sides of the inner cavity of the mounting groove 8. A first assembly hole 16 is provided on the surface of the closing block 15. A steering groove 17 is provided on the inner side of the mounting groove 8. A steering rod 18 is fixed to the inner cavity of the steering groove 17. The outer part of the steering rod 18 is movably sleeved with a steering tube 19. A sealing plate 20 is fixed to the outside of the steering tube 19. A second assembly hole 21 is provided on the surface of the sealing plate 20. A sealing ring 22 is bonded to the outer ring surface of the sealing plate 20. The sealing plate 20 can enhance the sealing performance of the combination with the mounting groove 8 through the cooperation of the sealing ring 22. The sealing plate 20 uses the steering tube 19 to move on the steering rod 18.The inner cavities of the first assembly hole 16 and the second assembly hole 21 are threadedly connected with a tightening rod 23. The tightening rod 23 is manually rotated clockwise or counterclockwise with a screwdriver. When it is rotated clockwise, the tightening rod 23 is connected and fixed to the first assembly hole 16 and the second assembly hole 21, so that the sealing plate 20 is merged into the installation groove 8, and the sealing plate 20 is also limited by the closing block 15 to prevent the sealing plate 20 from sinking into the installation groove 8. When the tightening rod 23 is rotated counterclockwise, the installation groove 8 can be opened, thereby operating the limit assembly 4 and installing. A scale pattern 24 is formed on one side of the mounting groove 8. The control rod 41 can determine its moving position according to the scale pattern 24, thereby improving the accuracy of the movement of the limit assembly 4. A bellows 25 is fixed to the inner wall of the transmission gear 1 or the transmission pinion 2, and the other end of the bellows 25 is fixed to the surface of the sizing ring 44. The bellows 25 can protect the exterior of the control rod 41 and can also move synchronously with the length change of the control rod 41, thereby preventing wear and rust on the surface of the control rod 41 and improving the durability of the control rod 41.

[0032] Depend on Figure 1 It is given that the outer wall of the transmission large gear 1 or the transmission small gear 2 is provided with three or more groups of finger grooves 26 arranged at equal intervals on both the front and back sides. The diameter of the finger groove 26 is more than 5 cm. Due to the large diameter of the finger groove 26, the user's hand can be inserted, thereby facilitating the application of force when carrying the transmission large gear 1 or the transmission small gear 2, thereby improving the portability of the transmission large gear 1 or the transmission small gear 2;

[0033] Depend on Figure 1 、 5 It is given that the surface of the transmission large gear 1 or the transmission small gear 2 is further provided with a storage groove 27, and the inner cavity of the storage groove 27 is installed with a reflective component 28. The storage groove 27 can store the reflective component 28 to prevent the reflective component 28 from being exposed to the outside of the transmission large gear 1 or the transmission small gear 2 when not in use. The reflective component 28 includes a positioning rod 281 fixed to the inner cavity of the storage groove 27, and one end of the positioning rod 281 is movably connected to a movable tube 282. The movable tube 282 can be turned and moved on the positioning rod 281. The surface of the movable tube 282 is provided with a movable groove 283, and the inner cavity of the movable groove 283 is movably connected to a merging plate 284. The merging plate 284 can rotate inside the movable groove 283 on the movable tube 282. The surface of the merging plate 284 is inlaid with a lens 285. The lens 285 can move synchronously according to the merging plate 284, and then adjust the angle of the lens 285, so that the lens 285 can refract sunlight to shine on the transmission large gear 1 or the transmission small gear 2. By determining whether the light shines on the transmission large gear 1 or the transmission small gear 2, it can be determined whether the installation position of the transmission large gear 1 or the transmission small gear 2 is too offset, thereby judging the installation position of the transmission large gear 1 or the transmission small gear 2, thereby improving the installation accuracy of the transmission large gear 1 or the transmission small gear 2.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical transmission sprocket assembly, comprising a transmission gear (1), a transmission pinion (2), and a transmission chain (3), characterized in that: The transmission gear (1) is connected to the transmission pinion (2) through a transmission chain (3); a plurality of merging blocks (10) are fixed to the outside of the transmission gear (1) or the transmission pinion (2); a surface of each merging block (10) is attached to an arc-shaped protective ring (11); the outside of each protective ring (11) is threadedly connected to a screw (12); and the screw (12) passes through one end of the protective ring (11) and is threadedly connected to the surface of the merging block (10); the outside of the protective ring (11) is bonded with a heat sink (13); two scraping mechanisms (14) are respectively installed on the outside of the transmission gear (1) or the transmission pinion (2); each of the two scraping mechanisms (14) corresponds to the front and rear parts of the transmission chain (3); Each of the scraping mechanisms (14) comprises two corresponding movable holes (141) provided on the outside of the transmission gear (1) or the transmission gear (2), a support frame (142) is movably mounted on the inner walls of the two movable holes (141), a loose bolt (143) is threadedly connected to the surface of the support frame (142), one end of the loose bolt (143) passes through the support frame (142) and is threadedly connected to a shaped hole (144), and the shaped hole (144) is provided on the surface of the transmission gear (1) or the transmission gear (2), and a scraping plate (145) is fixed to the top of the support frame (142); The surfaces of the transmission gear (1) and the transmission gear (2) are provided with a plurality of mounting grooves (8), the inner cavity of each mounting groove (8) is provided with a corresponding number of equally spaced limit assemblies (4), the inner wall of each limit assemblies (4) is provided with a replaceable assembly ring (5), the inner wall of each assembly ring (5) is provided with a number of screws (6) corresponding to the number of limit assemblies (4), and one end of each screw (6) passes through the assembly ring (5) and is threadedly connected to the surface of the limit assemblies (4); The limiting assembly (4) comprises a control rod (41) threadedly connected to the inner wall of the transmission gear (1) or the transmission pinion (2), a circular limiting block (42) being fixed at one end of the control rod (41), a retaining block (43) being movably mounted on the outside of the limiting block (42), an arc-shaped shaping ring (44) being fixed on the outside of the retaining block (43), two guide rods (45) being fixed on the outside of the shaping ring (44), and one end of the outer side of the two guide rods (45) being movably sleeved on the inner wall of the transmission gear (1) or the transmission pinion (2), and a blocking block (46) being fixed at one end of each guide rod (45) located in the inner cavity of the transmission gear (1) or the transmission pinion (2).

2. A mechanical transmission sprocket assembly according to claim 1, characterized in that: At least three sliding components (9) are installed on the outside of the limiting block (42), and a sliding groove (7) is opened in the inner cavity of the retaining block (43), and the inner wall of the sliding groove (7) is slidably matched with the outside of the sliding component (9).

3. A mechanical transmission sprocket assembly according to claim 2, characterized in that: The sliding assembly (9) includes a retaining groove (91) provided on the surface of the limiting block (42), a retaining rod (92) being fixed to the inner cavity of the retaining groove (91), a ball (93) being movably mounted in the middle of the retaining rod (92), and the surface of the ball (93) slidingly matches the inner wall of the sliding groove (7).

4. A mechanical transmission sprocket assembly according to claim 1, characterized in that: Closing blocks (15) are fixed on both sides of the inner cavity of the installation groove (8), a first assembly hole (16) is provided on the surface of the closing block (15), a steering groove (17) is provided on the inner side of the installation groove (8), a steering rod (18) is fixed to the inner cavity of the steering groove (17), a steering tube (19) is movably sleeved on the outer side of the steering rod (18), a sealing plate (20) is fixed to the outer side of the steering tube (19), a second assembly hole (21) is provided on the surface of the sealing plate (20), a sealing ring (22) is bonded to the outer ring surface of the sealing plate (20), and a tightening rod (23) is threadedly connected to the inner cavity of the first assembly hole (16) and the second assembly hole (21).

5. The mechanical transmission sprocket assembly according to claim 1, characterized in that: A scale pattern (24) is provided on one side of the mounting groove (8), a bellows (25) is fixed to the inner wall of the transmission gear (1) or the transmission gear (2), and the other end of the bellows (25) is fixed to the surface of the shaping ring (44).

6. The mechanical transmission sprocket assembly according to claim 1, characterized in that: The front and back surfaces of the outer wall of the transmission gear (1) or the transmission gear (2) are both provided with three or more groups of finger grooves (26) arranged at equal intervals and correspondingly, and the diameter of the finger grooves (26) is greater than 5 centimeters.

7. The mechanical transmission sprocket assembly according to claim 1, characterized in that: A receiving groove (27) is also provided on the surface of the transmission gear (1) or the transmission gear (2), and a reflective component (28) is installed in the inner cavity of the receiving groove (27).

8. A mechanical transmission sprocket assembly according to claim 7, characterized in that: The reflective assembly (28) comprises a positioning rod (281) fixed in the inner cavity of the storage slot (27); one end of the positioning rod (281) is movably sleeved with a movable tube (282); a movable groove (283) is provided on the surface of the movable tube (282); a merging plate (284) is movably sleeved in the inner cavity of the movable groove (283); and a lens (285) is inlaid on the surface of the merging plate (284).

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